AtenololPropanolaminesAdrenergic beta-AntagonistsAdrenergic beta-1 Receptor AntagonistsMetoprololPropranololHeart RateBetaxololAntihypertensive AgentsPindololDouble-Blind MethodHypertensionBlood PressureBendroflumethiazideHydrochlorothiazideCeliprololOxprenololButoxamineAcebutololReceptors, Adrenergic, betaNifedipineClinical Trials as TopicNadololLabetalolAmlodipineDoxazosinDrug Therapy, CombinationRandom AllocationPhysical ExertionPulseReceptors, Adrenergic, beta-1